This was found with the -RT patch enabled, but the fix should apply to non-RT also.
Used multi_v7_defconfig+PREEMPT_RT_FULL=y and this caused a compilation warning without this fix: ../drivers/cpuidle/coupled.c:122:21: warning: 'cpuidle_coupled_lock' defined but not used [-Wunused-variable] Signed-off-by: Anders Roxell <[email protected]> --- drivers/cpuidle/coupled.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c index 344058f..d5657d5 100644 --- a/drivers/cpuidle/coupled.c +++ b/drivers/cpuidle/coupled.c @@ -119,7 +119,6 @@ struct cpuidle_coupled { #define CPUIDLE_COUPLED_NOT_IDLE (-1) -static DEFINE_MUTEX(cpuidle_coupled_lock); static DEFINE_PER_CPU(struct call_single_data, cpuidle_coupled_poke_cb); /* -- 2.1.4
